JPH0340433Y2 - - Google Patents

Description

[Detailed explanation of the idea]

(Industrial Application Field) The present invention relates to a roll feed adjustment device in a mechanical press. (Prior Art) In a roll feed device in which a material is sandwiched between a pair of rolls and fed by frictional force, the roll feed device is operated by a press drive and is fed intermittently by a one-way clutch. , As shown in Figures 4 and 5, screw the screw hole E formed at the upper end of the drive rod into the adjustment screw member C provided on the eccentric plate L whose base end is fixed to the crankshaft A, and make the adjustment. Screw the screw member C with an appropriate tool, displace the upper end position of the drive rod through the screw hole E, adjust the amount of deviation between the center of the crankshaft A and the upper end of the drive rod, and adjust the deviation of the lower end of the drive rod. The main roll drive shaft equipped with a one-way clutch is intermittently rotated via the operating rod pivotally connected to the main roll and the sub-roll, and the feed operation is stopped during press processing. I'm trying to send it to you. (Problem to be solved by the invention) Since the feed amount was adjusted by displacing the upper end of the drive rod attached to the eccentric plate by the screw of the adjustment screw member, the feed amount could be adjusted while the press was operating. When changing the feed amount, the press must be stopped, and the upper end of the drive rod is displaced by turning the adjusting screw member, adjusting the amount of eccentricity, and performing trial driving. Since the feed amount of the roll feed device was adjusted by doing so, there was a problem that the adjustment was time-consuming and troublesome. (Means for solving the problem) The present invention can adjust the feed amount of the roll feed device even when the press is in operation, displays the feed amount numerically, and adjusts the feed amount in a short time based on this value. Claims
In (1), a primary drive rod is provided by attaching the upper end to an eccentric plate whose base end is attached to the crankshaft, and the lower end of this primary drive rod is pivotally connected to the free end of the primary operating lever.
a base end of the primary actuation lever is pivotally connected to a fixed intersection;
The lower end of the secondary lever, whose upper end is pivoted to a slider provided near the free end of the primary actuating lever, is attached to the free end of the adjusting rod whose base is attached to a movable piece that can be freely displaced along the guide member. The upper end of the secondary drive rod is pivoted at the same center as the upper end of the secondary actuation lever. Claim (2) further provides a roll feed adjustment device comprising: a mechanism for numerically displaying the feed amount; (Function) The operating rod is moved together with the movable piece that is displaced along the guide member, changing the inclination angle of the adjusting rod and changing the opening angle between the swinging rod and the secondary actuating lever, causing the secondary drive rod to reciprocate up and down. The feed amount of the roll feed device can be adjusted by changing the moving distance. (Embodiment) An embodiment of the device of the present invention will be described with reference to FIGS. 1 to 3. As shown in FIGS. 1 and 2, the roll feed adjustment device 1 consists of a primary roller whose upper end screw hole 5a is screwed into an adjustment screw member 4 of an eccentric plate 3 whose base end is attached to a crankshaft 2 of a mechanical press. A drive rod 5 is provided, the lower end of which is pivotally connected 7 to the free end of the primary actuation lever 6. The base end of the primary operating lever 6 is pivoted 8 as a fixed fulcrum. Next, the adjusting rod 11 is provided by attaching the proximal end to a movable piece 10 that slides along the guide member 9 and is freely displaceable. The movable piece 10 is a threaded rod 14 rotatably attached via a clutch 13 to a shaft of a motor 12 with a reducer fixed to a guide member 9 attached to the press.
The screw hole 10a is screwed into the motor 1.
2 and rotate the screw rod 14 to move the movable piece 10.
is freely displaceable along the guide member 9 in the axial direction of the threaded rod 14. Next, as shown in FIG. 2, a secondary actuation lever 16 is provided by having its proximal end pivoted 15 to the free end of the adjustment rod 11, and positioned near the free end of the primary actuation lever 6 and close to the primary actuation lever 6. The upper end of the secondary actuating lever 16 is pivotally attached 18 to a slider 17 which is slidable in the longitudinal direction along the formed guide path 6a. Further, a secondary drive rod 21 is provided, the lower end of which is pivotally connected to the free end of an operating rod 20 whose base end is attached to the main roll drive shaft 19, and the upper end of this secondary drive rod 21 is connected to the upper end of the secondary operating lever 16. It is attached to the slider 17 by being pivoted 22 at the same center as the slider 17. In this case, the amount of eccentricity of the upper end of the primary drive rod 5 with respect to the eccentric plate 3 is determined in advance so that the lower end of the primary drive rod 5 is pivoted so that the swing angle of the primary operating lever 6 is 60 degrees, and Pivoting 15 of actuation lever 16
The fulcrum is freely displaceable in the axial direction of the threaded rod 18, and the secondary operating lever 16 is configured to reciprocate with a maximum swing angle of 90 degrees when the pivot 15 fulcrum moves to the right for the longest time. As it moves to the left, the swing angle of the secondary actuation lever 16 gradually becomes smaller, and when the upper end reaches the same position as the pivot point 7 of the primary actuation lever 6, the swing angle becomes zero. The material feeding mechanism 23 has a main roll 24 and a sub-roll 25, and is a secondary drive rod 21 whose lower end is pivoted 26 to the free end of an operating rod 2 attached to the main roll drive shaft 19. The secondary actuating lever 16 is actuated by the driven primary actuating lever 6, and the secondary actuating rod 21 is actuated.
is operated to rotate the main roll 24 of the material feeding mechanism 26 intermittently. To adjust the feed amount, operate the motor 12, rotate the threaded rod 14, and adjust the secondary actuating lever 16 at the pivot point 1.
Adjust as desired by moving the 5 fulcrums. The threaded rod 1 is attached to the guide member 10 so as to numerically display the change in feed amount in response to the rotation of the threaded rod 14.
A numerical control mechanism 29 is provided which includes a converter that sends a signal to a display counter 27 in accordance with the rotation of the
This numerical control mechanism 29 has a converter 28 disposed on the guide member 9 that converts and transmits the amount of movement of the movable piece 10 into numerical values by the movement of a ruler 30 that slightly moves left and right as the threaded rod 14 rotates. A motor actuation push button switch 32 is provided on a control panel 31 located at an appropriate location that is easy for a person to recognize. Since the present invention is constructed as described above, when adjusting the feed rate of the material feed mechanism 23, the motor 12 is operated, the movable piece 10 is displaced, and the adjustment can be made according to the numerical value of the display counter 27. That is, the vertical and reciprocating distance of the secondary drive rod 21 in the state shown in the second figure is determined by moving the adjusting rod 11 to the left and pivoting the adjusting rod 11 to the left side of the pivot 8 which is the fixed fulcrum at the lower end of the primary operating lever 6. 15 When the fulcrum is displaced, the vertical and reciprocating distance of the secondary drive rod 21 is
It is smaller than the case shown in the second diagram. Therefore, the vertical swing angle of the operating rod 20 swung by the secondary drive rod 21 becomes small, and the intermittent reciprocating rotation angle of the main roll 24 becomes small, so the case shown in the third figure is smaller than the case shown in the second figure. Material feed amount becomes small. When the swing angle of the secondary operating lever 16 is 90 degrees, the maximum feed amount is achieved, and when the 15 pivot points match the 8 pivot points, the material feed amount becomes zero. In this case, the adjustment amount, the swing angle of the secondary actuation lever (swing angle), and the feed amount of the material are set as shown in the table [ ], and the display relative to the actual feed amount is an approximate value.
For example, the maximum feed amount may be set to 100, in which case the table will look like this.

[Table] (Effects of the invention) This invention allows the feed amount to be adjusted by moving the adjustment rod while the mechanical press is in operation, which greatly improves the press operation rate and corresponds to the value on the display counter. Since the feed amount can be adjusted to be approximately equal to the actual feed amount, there is no need for adjustment tools, etc.
Adjustment can be completed safely and in a short time. Furthermore, the single drive rod system of an existing mechanical press can be improved with the device of the present invention to achieve numerical control of the feed rate.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram showing the outline of the device of the present invention, Figure 2
The figure is an enlarged explanatory diagram of the same main part, Figure 3 is an explanatory diagram of the state in which the adjustment rod is moved to adjust the feed amount, Figure 4 is a schematic explanatory diagram of the conventional device, and Figure 5 is an enlarged diagram of the main part. It is an explanatory diagram. 2... Crankshaft, 3... Eccentric plate, 5... Primary drive rod, 6... Primary operating lever, 9... Guide member, 10... Movable piece, 11... Adjustment rod, 16...
...Secondary operating lever, 17...Slide, 19...Main roll drive shaft, 20...Operating rod, 21...Secondary drive rod, 27...Display counter, 29...
...Numerical control mechanism.

Claims (1)

[Claims for Utility Model Registration] (1) A primary drive rod is provided by attaching the upper end to an eccentric plate whose base end is attached to the crankshaft, and the lower end of the primary drive rod is pivotally connected to the free end of the primary actuation lever; The base end of the primary actuation lever is pivotally connected to a fixed intersection, and the slider is provided near the free end of the primary actuation lever at the free end of an adjustment rod whose base is attached to a movable piece that is movable along a guide member. The upper end of a secondary drive rod has its lower end pivoted to the free end of the adjustment rod, and its lower end pivoted to the free end of an operating rod whose base end is attached to the main roll drive shaft. a roll feed adjustment device which is pivotally mounted on the same center as the upper end of the secondary actuation lever. (2) A primary drive rod is provided by attaching the upper end to an eccentric plate whose base end is attached to the crankshaft, and the lower end of this primary drive rod is pivotally connected to the free end of the primary operating lever, and the base end of the primary operating lever is a secondary lever whose upper end is pivoted to a slider provided near the free end of the primary actuation lever at the free end of an adjustment rod whose base is attached to a movable piece that can be freely displaced along the guide member; The upper end of the secondary drive rod, whose lower end is pivotally connected to the free end of the adjustment rod, and whose lower end is pivotally connected to the free end of the operating rod whose base end is attached to the main roll drive shaft, is connected to the upper end of the secondary actuating lever. A roll feed adjustment device, which is pivotally mounted on the same center as the movable piece, is provided with a numerical control mechanism that allows the movable piece to be freely displaced by the rotation of a motor, converts the amount of movement of the movable piece into a numerical value, and displays the numerical value on a display counter.